For the given set of strand burner data (given also as a .txtfor easy excel import):
Calculate the parameters, a and n, of St. Robert’s Law for eachT0. Plot the results in log-log space.
Calculate the temperature sensitivity of the propellant,σp at P=0.5 MPa, P=5 MPa, and P=10 MPa.
Hypothetical Strand Burner Data | | | |
| | | | | | |
T0= | 300 | K | | T0= | 350 | K |
P (Mpa) | rb (Cm/s) | | | P (Mpa) | rb (Cm/s) | |
0.5 | 2.77E-01 | | | 0.5 | 2.81E-01 | |
1 | 4.55E-01 | | | 1 | 4.70E-01 | |
1.5 | 5.66E-01 | | | 1.5 | 5.93E-01 | |
2 | 6.83E-01 | | | 2 | 7.21E-01 | |
2.5 | 7.69E-01 | | | 2.5 | 8.39E-01 | |
3 | 8.68E-01 | | | 3 | 9.70E-01 | |
3.5 | 9.62E-01 | | | 3.5 | 1.05E+00 | |
4 | 1.09E+00 | | | 4 | 1.14E+00 | |
4.5 | 1.18E+00 | | | 4.5 | 1.27E+00 | |
5 | 1.22E+00 | | | 5 | 1.34E+00 | |
5.5 | 1.32E+00 | | | 5.5 | 1.45E+00 | |
6 | 1.37E+00 | | | 6 | 1.54E+00 | |
6.5 | 1.45E+00 | | | 6.5 | 1.63E+00 | |
7 | 1.52E+00 | | | 7 | 1.69E+00 | |
7.5 | 1.59E+00 | | | 7.5 | 1.77E+00 | |
8 | 1.70E+00 | | | 8 | 1.83E+00 | |
8.5 | 1.77E+00 | | | 8.5 | 1.91E+00 | |
9 | 1.79E+00 | | | 9 | 2.00E+00 | |
9.5 | 1.88E+00 | | | 9.5 | 2.08E+00 | |
10 | 1.96E+00 | | | 10 | 2.15E+00 | |
